Answer:
Explanation:
= v/f
^That is the formula we are going to use.
Now, we were given the speed (v), which is 20.
Now we need to find frequency, in order to solve for the wavelength.
Frequency is the amount of waves in a fixed unit of one second, meaning our F value is the value of 5 divided by 4.
5/4 = 1.25
Therefore our F is 1.25
Now lets plug it in
= v/f
= 20/1.25
= 16
Conversion:
= 8
The object particle move faster.
Answer:
Part a)
Q = 3198 J
Part b)
It is compression of gas so this is energy transferred to the gas
Explanation:
Part a)
Energy transfer during compression of gas is same as the work done on the gas
In isothermal process work done is given by the equation

now we know that
n = 1.4 moles
T = 27 degree C = 300 K


now we have


Part b)
It is compression of gas so this is energy transferred to the gas
<em>m = 4.3 kg</em>
<em>Hi there ! </em>
<em>use formula</em>
<em>G = m×g => m = G/g</em>
<em>g ≈ 10N/kg</em>
<em>replace G ; g</em>
<em>m = 43N/(10N/kg)</em>
<em>m = 4.3 kg</em>
<em>Good luck !</em>
Answer:
The correct answer is Joseph Stalin.
Explanation:
Joseph Vissarionovich Stalin was a Soviet politician who led the soviet union from 1929 - 1953. Stalin self declared himself as the dictator by 1930s. He was the person behind the Great Purge or "Great Terror" in which around a million were imprisoned and some 750,000 were executed. This campaign was led just to execute all those who were a threat to his party.